Regulating-valve for gas-burners.



No. 739,346. PATENTED SEPT. 22, 1903;

V. A. RETTIGH.

7 REGULATING VALVE FOR GAS BURNERS.

APPLICATION FILED NOV. 11, 1901. HO'MODEL.

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No. 739,346. Patented September 22, 1903.

UNIT D STATES. PATENT. OFFICE.

VICTOR ALEXANDER RETTICH, OF NEW YORK, N. Y., ASSIGNOR TO KERN INOANDESCENT GAS LIGHT COMPANY, OF NEW YORK, N. Y., A CORPO- RATION OF NEW JERSEY.

REGULATlNG-VALVE FOR GAS-BURNERS.

SPECIFICATION forming part of Letters PatentNo. 739,346, dated September 22, 1903.

Application filed November 11, 1901. Serial No. 81,841. (No model.)

To all whom it may concern: fice, which means are described in the follow- Be it known that I, VICTOR ALEXANDER ing portions of this specification, and the RETTIGH, a subject of the King of England, characteristic features are pointed out in the and a resident of the borough of Manhattan, claims. p

in the city and State of New York, (post-of- In the drawings, Figure 1 is a central secfice address, No. 124 West Ninety-seventh tion of a portion of one type of burner prostreet, New York,) have invented certain new vided with my improvement. Fig. 2 is a side and useful Improvements in Regulating"- elevation of the needle-valve typeillustrated Valves for Gas-Burners, of which the followin section in Fig. 1. Fig. 3 shows, partly in X0 ing is a specification, accompanied by drawcentral section, a variation of the invention ings. employingarack-and-pinion movement. Fig.

The invention is adapted and designed es- 4 similarly shows another variation employpecially to the class of valves known in the ing a snail or helical cam. 1 gas-lighting art as needle-valves, used in In Fig. 1 the mixing-tube ormixing-chami 5 burners of the Bunsen type, wherein the force her of a Bunsen burner is shown at b, the air- 6 5 of the gas issuing from the jet-orifice of the inlet opening being-indicated at c. The jetneedle-valve is made use of to draw air into orifice is shown at d. The jet-orifice d is the mixing-chamber to produce a combustipreferably formed in a single piece with the ble mixture; but the invention isnot limited gas connection f, by which the burner is' 20 to this use, as it is applicable for regulating fixed to the bracket or gas-pipe; but of the jet-orifice of certain forms of acetylenecourse the invention is not concerned in the gas burners and is probably applicable to a number of pieces which are employed to form good many other uses. any of the parts. Within the gas connection In use with incandescent mantles of the f is the gas passage-way g, through which the v 25 Kern, Welsbach, and other types it is gener: gas passes to the jet-orifice. This passageally necessary for the purpose of obtaining way is usually screw-threaded for attachthe greatest efficiency for regulating the ment to the gas-fixture. When so screwamount of gas according to the varying presthreaded, I may utilize the threading as, a sures and qualities of the gas met with in the means of inserting a stop h in the form of an 30 practical use of such burners. The invenincomplete wirering, which is sprung into tion ofiers a ready means of regulating the the threading, so'as to prevent the dropping gas supplied to the burner in a ,highly-accuout of the valve when the adjusting connecrate and delicate manner and by a mechantion or screw is withdrawn. The valve 1), ism which is characterized by simplicity, preferably of the needle-valve type and fitted 35 economy, cheapness, and freedom from leakto the orifice d, is enlarged downward, and age. In burners of this type it is not good the enlarged portion in the preferred form of, practice to place a regulatingwalve at some the invention is directly guided in the gasdistance from the jet-orifice, because so to do duct or gas passage-way 9. To permit f-ree reduces the gas-pressure at the orificeinstead passage of the gas through the enlargement 4 of reducing the orifice without modifying the of the valve when designed in the form pressure. The present invention affords a shown, ducts w are formed in the valve, as means of regulating the freedom of passage shown. Between the jet-orifice and the env through the orifice without necessarily in any largement I prefer to employ a spring 3, way interfering with the freedom of the paswhich acts independently of the weight of the 45 sage of the gas until it reaches the vicinity valve to press the valve downward or away of the orifice. e from the orifice. To furnish means for ad- Briefiy stated, the present improvement justing the valve mechanically, Iprefer to consists of a valve mechanism for the j et-oriemploy a screw j, which is tapped or threaded fice provided with extremely simple means through the wall of the gas connection and 5 for adjusting the valve relatively to the oriterminates internally in a conical or conoidal roo end. This conoidal end forms an inclined surface, against which the valve rests and by means of which it may be elevated by screwing in the screw j; but I also prefer for an inclined surface preferably a conical, spherical, or conoidal surface upon the valve, against which surface the end of the screw acts. By employing inclined surfaces on both the valve and the-screw end a range of movement equal approximately to half the diameter of the screw plus the height of theincline on the valve is made possible. The screwj not only forms a means of very delicate adjustment, but also affords one of the simplest and best gas-tight joints through which the adjustingconnectionmaypass. The complete mechanism constitutes a micrometer adjustment for the valve. The ring orstop h may be placed at such a point in the gas-passage as to permit the valve to open as far as possible without interfering with the insertion of the screw into its hole, so that if the screw is withdrawn it can be reinserted without difficulty. The operation of this form of valve is such that the gas is free to pass without loss of pressure directly to the orifice, and the valve merely controls the freedom of passage through the orifice and allows substantially the full pressure to actin forcing a jet of gas through the orifice. The simplicity of construction obviates the necessity of separate ducts for passing around the larger portions of the valve and of any special guiding-surfaces for the valve. The invention utilizes the wall of the gaspassage for guiding the enlarged portion of the valve. By merely taking out the screw and the stop h the valve and the spring 3 may drop freely out through the gas-passage, leaving the orifice free to be cleaned from either direction.

In Fig. 3 the construction is varied by substituting a pinion upon the end of the screw, which engages a rack that moves with the valve, these elements taking the place of the inclined surfaces of Figs. 1 and 2.

In Fig. 4. another variation is shown, in which the end of the screw is milled and the valve is provided with an inclined helical cam-surface or snail which the milled end of the screw engages and supports. The rotation of the milled end of the screw rotates the valve and causes the cam or snail to elevate or depress the valve. The screw and the snail act like a small beveled gear coacting with the beveled helical gear-wheel segment.

Other variations of the broader principles of the invention have suggested themselves; but the most approved form is shown in Figs. 1 and 2.

The invention admits of great simplicity and fewness of parts; but I am of course aware that the screw for giving passage to the adjusting connection through the wall of the gas-passage need not necessarily be an integral part with the inclined surface or pinion or other interior elements that more directly operate the valve.

In order to point out the characteristic and distinguishing features of 7 my invention, I claim the following:

1. In a burner apparatus of the type wherein the gas issues in a jet, the improvement which consists in the combination of a gas-conducting connection having a gas passage-way and a jet-orifice, a valve for the jet-orifice provided with an eplgggegpepthaving a gas-duct therein and which is guided infifiid coutained wholly within the passage-way, and a screw, threaded gas-tightly through the wall of the gas connection itsinnerportion engaging part of the valve for supporting the same and adjusting it in said passage-way to. regulate the freedom of passage at the jet-orifice.

2. In a burner apparatus of the type wherein the gas issues in a jet, the improvement which consists in the combination of a gas-cond ucting connection having a gas passage-way and a jet-orifice, a valve for the jet-orifice provided with an enlarged portion movable with it, a spring intermediate of'fhbbfi'fine and the enlargement and tending to press the valve away from the orifice, angl neans for adjusting the valve at will against the action of the spring,substantially as set forth.

3. In a burner apparatus of the type wherein the gas issues in a jet, the improvement which consists in the combination of a gas-conducting connection having a gas passage-way and a jet-orifice, a'valve for the jet-orifice provided with an enlargement having a gas-duct therein and which is guided in the passageay, a nemovablastop.1190!)...fi1l?Mallof the passage-way for engaging the enlargement and limiting its downward movement and means for exteriorly adjusting the valve to regulate the freedom of passage at the jetorifice. V 4. In burner apparatus of the type wherein the gas issues in a jet, the improvement which consists in the combination of a gas-conducting connection having a gas passage-way and provided with a jet-orifice, a valve for the jet-orifice movable to and from the orifice, and a gas-duct arranged to permit the passage of gas by the lower portion of the valve, a rotary adjusting connection therefor screwthreaded substantially gas-tightly through the wall of the said gas connection and cooperating with the valve to raise and lower it and regulate the jet, said adjusting connection having a conical end for translating its longitudinal motion into vertical adjustment of the valve.

5. In burner apparatus of the type wherein the gas issuesina jet, the improvement which consists in the combination of a gas-conducting connection having a gas passage-way and provided with a jet-orifice, a valve for the jet-orifice movable to and from the orifice, one of the parts having a gas-duct adapted for the passage of gas past the lower portion purposes set forth.

6. In a burner apparatus of the type wherein the gas issues in a jet, the improvement which consists in the combination of a gas-conducting connection having a gas passage-way and a jet-orifice, a valve for the jet-orifice provided with an enlargement, a gas duct adapted for the passage of gas past said enlargement 15' and an adjusting connection working longitudinally through the Wall of the said gas connection and engaging a lower surface of the said enlargement inclined to the line of travel of the said adjusting connection for 20 raising and lowering the valve.

Signed this 9th day of November, 1901, at New York.

VICTOR ALEXANDER RETTICH. v

Witnesses:

H. S. MORTON,

E. VAN ZANDT 

